SOLUTION: Given f(x) = 2x + 5, find f(a – 1). These are my choices 2a + 3 2a + 4 a + 6 a + 3

Algebra.Com
Question 76690: Given f(x) = 2x + 5, find f(a – 1).
These are my choices
2a + 3
2a + 4
a + 6
a + 3

Answer by stargrl12566(16)   (Show Source): You can put this solution on YOUR website!
First substitute the variable with the given
f(x)=2(a-1)+5
Then solve
f(x)=2a-2+5
f(x)=2a+3
That means choice one

RELATED QUESTIONS

For the function f(x)=2x+5 Find: a) f(2)+f(3) b) f(-1)+f(10 c) f(a)+f(-2a) d)... (answered by amarjeeth123)
Let f be the function defined by {{{f(x)=2x^4+5}}}. Find f(a+h),... (answered by jim_thompson5910)
f(x)=5x2+4x (a)f(3)... (answered by checkley75)
What is f(x+1)? 1) 7 2) 2a-5 3) 2a+5 4) a+5 The book says the answer is 3, but I... (answered by ikleyn)
1) Given the formula f(a+h)-f(a)/h (2a^2+4ah+2h^2+4a+4h+5)-(2a^2+4a+5)/h 2)... (answered by stanbon)
(1/3 x 4/5)-(2/5 + 3/6) (2a-3a)-(4a+a)-(2a-a) 22.345 x 66.786... (answered by checkley77)
(1/3 x 4/5)-(2/5 + 3/6) (2a-3a)-(4a+a)-(2a-a) 22.345 x 66.786... (answered by checkley77)
I cant find these again.....I am stuck...Can someone help me Here is the problems and I... (answered by solver91311)
Given the function f(x)=x^2+2x+1, find f(2a−3/5) (answered by ikleyn)